Home / 134,120.07-185,032.67-86,400.95

Finding the Fourth Proportional to 134,120.07, 185,032.67 and 86,400.95

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Solution

The fourth proportional to 134,120.07, 185,032.67 and 86,400.95 is: 119,199.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,120.07 : 185,032.67 = 86,400.95 : x
  2. Step 2: Convert to fraction form
    134,120.07/185,032.67 = 86,400.95/x
  3. Step 3: Cross multiply
    134,120.07x = 185,032.67 × 86,400.95
  4. Step 4: Simplify right side
    134,120.07x = 15,986,997,111.87
  5. Step 5: Solve for x
    x = 15,986,997,111.87/134,120.07
  6. Step 6: Final answer
    x = 119,199.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.